{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:21:00.217437", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2019-Dec-02_to_2019-Dec-05_300.5_-30.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2019120000128}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "December 02 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 05 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 100910.46869520248}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Argentina", "Uruguay"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -30.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 300.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "300.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 302.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -32.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -29.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.75, -30.5], [-62.53, -29.97], [-62.0, -29.75], [-61.75, 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-28.85], [-60.0, -28.75], [-59.75, -28.85], [-59.5, -28.75], [-59.25, -28.85], [-59.0, -28.75], [-58.47, -28.97], [-58.32, -29.32], [-57.97, -29.47], [-57.82, -29.82], [-57.47, -29.97], [-57.25, -30.5], [-57.37, -30.8], [-56.97, -30.97], [-56.75, -31.5], [-56.97, -32.03], [-57.32, -32.18], [-57.47, -32.53], [-58.0, -32.75], [-58.25, -32.65], [-58.5, -32.75], [-58.75, -32.65], [-59.0, -32.75], [-59.25, -32.65], [-59.5, -32.75], [-60.03, -32.53], [-60.18, -32.18], [-60.25, -32.15], [-60.5, -32.25], [-60.75, -32.15], [-61.0, -32.25], [-61.53, -32.03], [-61.68, -31.68], [-62.03, -31.53], [-62.18, -31.18], [-62.53, -31.03], [-62.75, -30.5]]]]}, "2019-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.75, -30.5], [-62.53, -29.97], [-62.0, -29.75], [-61.75, -29.85], [-61.68, -29.82], [-61.53, -29.47], [-61.18, -29.32], [-61.03, -28.97], [-60.5, -28.75], [-60.25, -28.85], [-60.0, -28.75], [-59.75, -28.85], [-59.5, -28.75], [-59.25, -28.85], [-59.0, -28.75], [-58.47, 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-30.8], [-56.97, -30.97], [-56.75, -31.5], [-56.97, -32.03], [-57.32, -32.18], [-57.47, -32.53], [-58.0, -32.75], [-58.25, -32.65], [-58.5, -32.75], [-58.75, -32.65], [-59.0, -32.75], [-59.25, -32.65], [-59.5, -32.75], [-60.03, -32.53], [-60.18, -32.18], [-60.25, -32.15], [-60.5, -32.25], [-60.75, -32.15], [-61.0, -32.25], [-61.53, -32.03], [-61.68, -31.68], [-62.03, -31.53], [-62.18, -31.18], [-62.53, -31.03], [-62.75, -30.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.120800158898703}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.3809185077195405}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.64293585204649, 18.877072271247982, 18.795272742061684, 18.779566133777735]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.080713332092103, 18.030639934747, 17.40511882727793, 18.03315021060331]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.561660279506688, -4.155025445115991, -4.317764835768079, -4.503492557733757]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.120800158898703, -4.907211780320324, -5.11463400208288, -4.906389159036053]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7811330663097888, -1.6009856874622954, -1.6220134295316593, -1.7037181188119064]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0540034942779704, -1.87594492464783, -1.8605067343927837, -1.865086540035785]}}